static function removeByCondition($conditions = null, $extraConditions = null)
{
/*$def = $this->definition();
$keys = $def['keys'];
if ( !is_array( $conditions ) )
{
$conditions = array();
foreach ( $keys as $key )
{
$value = $this->attribute( $key );
$conditions[$key] = $value;
}
}*/
eZPersistentObject::removeObject(eZNewsletterTypeSubscription::definition(), $conditions, $extraConditions);
}
